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Is it possible that it was from the Mind's Eye series
or the Computer Animation
short-film compilations put out by Odyssey Productions
? They came out in the '90s and 2000s. One or two of them were marketed toward kids
, I remember that. They likely had the sort of bookend segments you're thinking of. And kids might well find some of the short films creepy.

This was what must have been an obscure, straight-to-video film from the late 1990s, made with the primitive CGI of the time. It creeped me out at the time, but in spite of that, I saw it several times, and in spite of THAT, I don't remember the title. It was available in a public library in the United States circa 2000. I'm putting it under Western Animation because I believe that it was animated in the western world.
The "plot" consisted of a (CGI) kid on his computer in his room—I remember establishing shots of his house at dusk that bookmarked the thing. The kid, fascinated with early internet, "discovers" a sentient... um... "entity" or two when they show up on his computer screen, and the kid is cool with it. The bulk of the film then becomes a showcase of CGI shorts, connected by the entity/ies (I have NO recollection of what they looked like, but I'm pretty sure they weren't humanoid) presenting them to the kid and him just saying "Wow!" before the thing proceeded, Want to see another? And then they did that for 5-7 shorts. I only recall two of them, and only one of them even remotely well:
1) A mammalian sort of entity (early CGI! you couldn't tell things apart) looking for something lost or stolen. That's all for that.
2) The one that never left me because of how creepy it was to me: Two sentient cyclone-type things, like red ribbon, dance, break up and get back together (they had no faces or limbs... but perhaps clothes, like a hat, and were able to pick things up with phantom arms). All the while, music is being played and a song sung; as a kid I thought it was Spanish pop, but in retrospect I think it may have been Japanese or even Korean. I was debating trying to textualize the melody, but I've seen others try and... it doesn't work well. But if you want me to try, I can.
For all I know those two were the same. The movie ends with the entity/ies disappearing from the screen, and the kid gets called down to dinner. Establishing shot of house, fade to black, end scene.
Any clues would be greatly appreciated.